Home / 67,640.94-93,382.07-40,790.25

Finding the Fourth Proportional to 67,640.94, 93,382.07 and 40,790.25

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Solution

The fourth proportional to 67,640.94, 93,382.07 and 40,790.25 is: 56,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,640.94 : 93,382.07 = 40,790.25 : x
  2. Step 2: Convert to fraction form
    67,640.94/93,382.07 = 40,790.25/x
  3. Step 3: Cross multiply
    67,640.94x = 93,382.07 × 40,790.25
  4. Step 4: Simplify right side
    67,640.94x = 3,809,077,776.87
  5. Step 5: Solve for x
    x = 3,809,077,776.87/67,640.94
  6. Step 6: Final answer
    x = 56,313.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.